[Nexus S General] kursk:
Hi all,

i've recently bought a Nexus S which is a non-US/UK (GT-i9020) version having a SC-LCD screen (GT-i9023).

Which is not, sadly, the only difference...

MOD EDIT: This tutorial also applies to AT&T/Rogers/Telus variants of the Nexus S with SAMOLED screen (i9020A)

This tutorial is based on AllGamer's [GUIDE] Step by Step ROOT Nexus S via ClockworkMod Recovery image (i9020 only).

Part 1 - Drivers

1 - Download Android SDK

2 - Unzip & launch "SDK Manager.exe"

3 - Cancel the first popup & go to "Available packages" > "Third party Add-ons" > "Google Inc."

4 - Select "Google USB Driver package" & click "Install Selected"

5 - Once you're finished go to your SDK installation "extras\google\usb_driver" dir

6 - (MOD EDIT: Ignore this step for i9020A models) Open "android_winusb.inf" and add the following lines to both "[Google.NTx86]" and "[Google.NTamd64]" sections :

;

;Google Nexus S GT-i9023

%SingleAdbInterface% = USB_Install, USB\VID_18D1&PID_4E20​

as described here [SOLVED] Google Android USB drivers - Nexus S SCLCD GT-i9023 not recognized

7 - Turn Off your SNS

8 - Make sure the SNS is connected to the PC via the USB cable

9 - Boot the SNS into the Bootloader Interface, by holding Volume UP & Power button

It reads LOCK STATE - LOCKED

Open Device Manager (or run devmgmt.msc) make sure you don't see this problem (windows failed to identify the SNS and install the correct drivers)

10 - Do a right click and select Update Driver Software

11 - Select Brose my computer for driver software

12 - Point it to your Android SDK installation "extras\google\usb_driver" dir

13 - Make sure to CLICK "Let me pick from a list of device drivers on my computer"

14 - Then from the list 3 choices select Android Bootloader Interface

15 - If it's installed properly it should show up like this (reboot is not required)

NOTE: if you encounter problems like question marks, unknown drivers, or exclamation marks eve after you have installed the drivers, download and try the USBDeview 32/64 to remove and uninstall all the junk USB devices from your computer/registry
​

Part 2 - Unlock

1 - Open a command prompt go to run & type "CMD" & hit enter

2 - Switch to the directory where you unzipped the Android SDK & go to "tools"

3 - Type "fastboot oem unlock" & hit enter

Then you will get this

fastboot oem unlock

...
​

Selecting YES will wipe EVERYTHING from the SNS, so make sure you have backed up everything you needed to safe before you continue.

4 - Use the Volume up/down keys to select and Power key to apply

you should see something like this after it's done

... OKAY [435.433s]

finished. total time: 435.433s​

Now back on this screen you should read

LOCK STATE - UNLOCKED​

Part 3 - Recovery

1 - Download the ClockworkMod recovery image (for i9020A models, use this i9023 recovery image too!) 3024v3-i9023.img from [MOD][RECOVERY]Clockwork 3.0.2.4 New wipe & confirm menus!! i9023 & i9020 versions

2 - Save it to the Android SDK "tools" dir

3 - Open a command prompt go to run & type "CMD" & hit enter

4 - Switch to the directory where you unzipped the Android SDK & go to "tools"

5 - Then type "fastboot flash recovery 3024v3-i9023.img" & hit enter

You should get something like this, if not your image is corrupted, download it again

sending 'recovery' (3980 KB)... OKAY [ 0.621s]

writing 'recovery'... OKAY [ 0.511s]

finished. total time: 1.132s​

6 - Then back on the SNS select Power Off (Reboot also works)
​

Part 4 - Root

1 - Power ON the SNS

2 - Download su-2.3.6.1-ef-signed.zip from [APP] Superuser 2.3.6.1 - Now on the Market [2010-09-05]

3 - Save it to the Android SDK "platform-tools" dir

4 - Open a command prompt go to run & type "CMD" & hit enter

5 - Switch to the directory where you unzipped the Android SDK & go to "platform-tools"

6 - Type "adb push su-2.3.6.1-ef-signed.zip /sdcard/su-2.3.6.1-ef-signed.zip" & hit enter

7 - Boot the SNS into the Bootloader Interface, by holding Volume UP & Power button

8 - Select "Recovery

9 - Then it should boot into this screen, if not then repeat the steps to download the image

10 - Select "Install ZIP from sdcard" (power button to apply)

11 - Select "Choose ZIP from sdcard" (power button to apply)

12 - Select su-2.3.6.1-ef-signed.zip (power button to apply)

13 - Select "Yes - su-2.3.6.1-ef-signed.zip"

Should says

Install from sdcard complete​

15 - select go back

16 - select reboot
​

You're now free to install the ROM you want.

Have fun, take care !

Credits goes to AllGamer & afilopou